Networks

Notes from NANOG 89: Trust and Network Infrastructure

Trust is such a difficult concept in any context, and certainly, computer networks are no exception. How can you be assured that your network infrastructure is running on authentic platforms, both hardware and software and its operation has not been compromised in any way? more

7 Reasons Why R&E Networks and Universities Are Critical to Future of Broadband

There has been considerable discussion about the future of broadband in terms of infrastructure i.e. fiber, wireless, community owned etc. However, there has been little discussion, to borrow a phrase from Internet 2, on Net+ broadband services. It is in the Net+ services where I think R&E networks can play a critical in helping communities and small commercial ISPs deploy advanced services and applications that will provide new business models to underwrite the costs of next generation broadband. more

IPv6 Enabled Networks Before and After World IPv6 Day

In our last post on CircleID, Measuring World IPv6 Day - First Impressions, we showed exactly when World IPv6 Day participants switched on IPv6 on their networks (by way of announcing DNS AAAA records). Now, a few weeks after World IPv6 Day, it's interesting to see what the longer-term effects have been. more

Life Outside IPv6 (Poll)

Within every organization a chosen few are tasked with introducing IPv6 into their networks, outward facing services or applications. But who are they? We know them as Network Engineers, System Administrators and Software Developers but are they one trick ponies spending all their time in layer 3? more

Government-Industry Collaboration Is Better than Developing a Surveillance State

President Obama, in March 2016, again stressed the need for better collaboration between the tech industry and the government. He referred to his own White House initiative - this has resulted in the newly-formed US Digital Service, which is trying to recruit the tech industry to work with and for government. One of the key reasons it is so difficult to establish trustworthy, good working relationships is the extreme lack of tech understanding among most politicians and government bureaucrats. more

Call the Routing Police!

There was a somewhat unfortunate outage for a major communications service provider in Australia, Optus, in mid-November. It appears that one of their peer Border Gateway Protocol (BGP) networks mistakenly advertised a very large route collection to the Optus BGP network, which caused the routers to malfunction in some manner. more

Peering and Interconnection Key to a Competitive American Telecoms Market

Peering has come back in the news with the FCC mentioning it in its set of reviews of the telecommunications market in the USA, following its Network Neutrality decision. The peering and interconnect issues are going to the heart of the telecoms matter in relation to competition, innovation and the Open Network. You don't need Network Neutrality rules, if you have a well functioning, transparent, interoperable and competitive infrastructure environment. more

The Role of FttH in the Development of 5G

As the roll out of FttH remains a slow process, it is no wonder that more and more people are looking towards mobile as a potential alternative. Obviously, mobile communication has improved over recent years in providing excellent access to broadband; and it has also become more affordable. At the same time, there is the fabulous hype about 5G, and the PR and media machines of the vendors involved make you believe that this will become a real competitor to the slow moving FttH developments. more

The Netizen’s Guide to Reboot the Root (Part II)

The first part of this series explained how Amendment 35 to the NTIA-Verisign cooperative agreement is highly offensive to the public interest. But the reasons for saving the Internet are more fundamental to Western interests than a bad deal made under highly questionable circumstances. One of the world's foremost experts on conducting censorship at scale, the Chinese Communist Party's experience with the Great Firewall... more

DDoS Attacks on US Banks This Week Peaked at 60 Gbps

Distributed denial-of-service (DDoS) attacks that targeted U.S. financial institutions this week have reached 60 Gbps, according to researchers from DDoS mitigation provider Arbor Networks. more

If Slate Comes in Standard Sizes, Why Not Broadband?

Last week I was at the National Slate Museum in Wales watching slate being split apart. On the wall were sample pieces of all the standard sizes. These have cute names like "princess". For each size, there were three standard qualities: the thinnest are the highest quality (at 5mm in thickness), and the thickest have the lowest quality (those of 13mm or more). Obviously, a lighter slate costs less to transport and lets you roof a wider span and with less supporting wood, hence is worth more. more

On the Internet Everyone is Connected to Everyone Else - Right?

We tend to make a number of assumptions about the Internet, and sometimes these assumptions don't always stand up to critical analysis. We were perhaps 'trained' by the claims of the telephone service to believe that these communications networks supported a model of universal connectivity. Any telephone handset could establish a call with any other telephone handset was the underlying model of a ubiquitous telephone service, and we've carried that assumption into our perception of the Internet. On the Internet anyone can communicate with anyone else - right? more

Network Dis-Aggregation and SDN: Different, But Related

Two of the hottest trends in networking today are network dis-aggregation and SDN. This is great for many reasons. It's also confusing. The marketing hype makes it hard to understand either topic. SDN has become so vague that if you ask 10 experts what it means, you are likely to get 12 different answers. Network dis-aggregation seems straightforward enough until it gets confused with SDN. We need to take a step back. In a recent Packet Pushers blog post; I start with a simple explanation of each of these trends and then map how they interact. more

Data Breaches Reported During 2016 Exposed Over 4.2 Billion Records

2016 broke the previous all-time high, set back in 2013, for the number of records exposed from reported data breaches. more

OpenFlow - The Programmable Network Revolution

Over the past few months I have made regular references to OpenFlow. This is an exciting new development that fits in very well with several of the next generation technology developments that we have discussed in some detail over the past few years -- new developments such smart cities and smart societies, the internet of things. Such networks need to operate more on a horizontal level, rather than the usual vertical connection between a computing device and the users. more